GeoSure Shrink Swell Deposits
The GeoSure data sets and reports from the British Geological Survey provide information about potential ground movement or subsidence in a helpful and user-friendly format. The reports can help inform planning decisions and indicate causes of subsidence. The methodology is based on BGS DiGMap (Digital Map) and expert knowledge of the behaviour of the formations so defined. This dataset provides an assessment of the potential for a geological deposit to shrink and swell. Many soils contain clay minerals that absorb water when wet (making them swell), and lose water as they dry (making them shrink). This shrink-swell behaviour is controlled by the type and amount of clay in the soil, and by seasonal changes in the soil moisture content (related to rainfall and local drainage). The rock formations most susceptible to shrink-swell behaviour are found mainly in the south-east of Britain. Clay rocks elsewhere in the country are older and have been hardened by burial deep in the earth and are less able to absorb water. The BGS has carried out detailed geotechnical and mineralogical investigations into rock types known to shrink, and are modelling their properties across the near surface. This research underpins guidance contained in the national GeoSure dataset, and is the basis for our responses to local authorities, companies and members of the public who require specific information on the hazard in their areas. The BGS is undertaking a wide-ranging research programme to investigate this phenomenon by identifying those areas most at risk and developing sustainable management solutions. Complete Great Britain national coverage is available. The storage formats of the data are ESRI and MapInfo but other formats can be supplied.
Simple
- Date (Creation)
- 2005
- Citation identifier
- http://data.bgs.ac.uk/id/dataHolding/13603028
- Point of contact
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Organisation name Individual name Electronic mail address Role British Geological Survey
enquiries@bgs.ac enquiries@bgs.ac.uk
Custodian British Geological Survey
enquiries@bgs.ac enquiries@bgs.ac.uk
Point of contact British Geological Survey
enquiries@bgs.ac enquiries@bgs.ac.uk
Distributor
- Maintenance and update frequency
- As needed
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GEMET - INSPIRE themes
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BGS Thesaurus of Geosciences
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Natural hazards
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- Keywords
-
-
NERC_DDC
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- Use limitation
-
The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (DigitalLE@bgs.ac.uk) if further advice is required with regard to permitted usage. DigitalLE@bgs.ac The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (DigitalLE@bgs.ac.uk) if further advice is required with regard to permitted usage.
- Access constraints
- Other restrictions
- Other constraints
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otherRestrictions
- Denominator
- 50000
- Language
- English
- Topic category
-
- Geoscientific information
- Geographic identifier
-
ENG
ISO 3166_1 alpha-3 2009
- Geographic identifier
-
ENGLAND [id=150000]
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979
- Geographic identifier
-
SCOTLAND [id=140000]
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979
- Geographic identifier
-
SCT
ISO 3166_1 alpha-3 2009
- Geographic identifier
-
WALES [id=170000]
British Geological Survey Gazetteer: Geographical hierarchy from Geosaurus 1979
- Geographic identifier
-
WLS
ISO 3166_1 alpha-3 2009
![thumbnail](https://spatialdata.gov.scot/geonetwork/srv/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((2%2049.82,2%2061,-8%2061,-8%2049.82,2%2049.82)))
- Supplemental Information
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Geotechnical data abstracted from NGDC site investigation collection and entered into the BGS geotechnical database. Methodology may be revised in the light of new knowledge or customer feedback. Changes in DiGMapGB-50 base data will require periodic or continuous revision. ADDITIONAL_INFO 1 = Complete GB National Coverage, subject to revision in line with changes in DiGMapGB-50 lithology codes. Based on 1:50 000 DiGMapGB-50 linework. Methodology consistent throughout. Otherwise subject to logical consistency of DiGMapGB-50.
- Reference system identifier
-
OGP
/
urn:ogc:def:crs:EPSG::27700
www.epsg.org 2005
- Distribution format
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Name Version ESRI Shapefile
Current BGS version
- Distributor contact
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Organisation name Individual name Electronic mail address Role British Geological Survey
enquiries@bgs.ac enquiries@bgs.ac.uk
Distributor
- OnLine resource
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Protocol Linkage Name http://www.bgs.ac.uk/products/geosure/home.html BGS GeoSure Homepage
- Hierarchy level
- Dataset
Conformance result
- Date (Publication)
- 2011
- Explanation
-
See the referenced specification
- Pass
- No
Conformance result
- Date (Publication)
- 2010-12-08
- Explanation
-
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
- Pass
- No
- Statement
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Methodology devised by GeoHazard project. Latest version and earlier versions are held in project files.
Metadata
- File identifier
- 9df8df52-d608-37a8-e044-0003ba9b0d98 XML
- Metadata language
- English
- Hierarchy level
- Dataset
- Date stamp
- 2020-07-08T09:38:53
- Metadata standard name
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NERC profile of ISO19115:2003
- Metadata standard version
-
1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role British Geological Survey
Lee,Kathryn A
kbo@bgs.ac kbo@bgs.ac.uk
Point of contact
- Dataset URI
Overviews
Spatial extent
![thumbnail](https://spatialdata.gov.scot/geonetwork/srv/api/regions/geom.png?geomsrs=EPSG:4326&geom=POLYGON((2%2049.82,2%2061,-8%2061,-8%2049.82,2%2049.82)))
Provided by
![logo](https://spatialdata.gov.scot/geonetwork/srv/../images/logos/af5aec2c-223f-498a-9640-c8c3d36b913f.png)